add more, hi all, Could anyone do me a favor and give some comments? Thanks Xie Yisheng On 2016/8/18 20:05, Xie Yisheng wrote: > As we know, arm64 also support gigantic hugepage eg. 1G. > So I try to use this function by adding hugepagesz=1G > in kernel parameters, with CONFIG_CMA=y. > However, when: > echo xx > /sys/kernel/mm/hugepages/hugepages-1048576kB/ > nr_hugepages > it failed with the info: > -bash: echo: write error: Invalid argument > > This patch make gigantic hugepage can be used on arm64, > when CONFIG_CMA=y or other related configs is enable. > > Signed-off-by: Xie Yisheng <xieyisheng1@xxxxxxxxxx> > --- > mm/hugetlb.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/mm/hugetlb.c b/mm/hugetlb.c > index 87e11d8..b4d8048 100644 > --- a/mm/hugetlb.c > +++ b/mm/hugetlb.c > @@ -1022,7 +1022,8 @@ static int hstate_next_node_to_free(struct hstate *h, nodemask_t *nodes_allowed) > ((node = hstate_next_node_to_free(hs, mask)) || 1); \ > nr_nodes--) > > -#if (defined(CONFIG_X86_64) || defined(CONFIG_S390)) && \ > +#if (defined(CONFIG_X86_64) || defined(CONFIG_S390) || \ > + defined(CONFIG_ARM64)) && \ > ((defined(CONFIG_MEMORY_ISOLATION) && defined(CONFIG_COMPACTION)) || \ > defined(CONFIG_CMA)) > static void destroy_compound_gigantic_page(struct page *page, > -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>